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Which compound would you NOT expect to be aromatic? :00: O: -I E I Д IV...
Which of the following compounds would you expect to be antiaromatic? (i) cyclooctatetraene (ii) 1,3-cyclooctadiene (iii) cyclooctatetraenyl dianion (iv) 1-ethenylcyclooctatetraene (v) 1,3,5,7-octatetraene Select one: a. i only b. i, ii, iv and v only c. iii only d. i and iv only e. all the above From my working I found i, ii, iv, and v to be non aromatic and iii to be aromatic. Is non aromatic the same as antiaromatic?
5. Which of the following would you expect to have significant resonance stabilization energy? a) I b) II c) III d) all three of them I II IL e) II and III Z -I z 6. Of the following C-10 compounds, which is expected to possess the greatest resonance (delocalization) energy? II III IV 7. Which of the following would you expect to be antiaromatic? v I III IV e 9. Which of the following would NOT be aromatic? II...
c) III d) IV e) None of these choices 1) Which of h llwng would you espet to be aromaic IV b) II c) III d) IV e) All of these choices 12) Which of the following would you expect to be aromatic? IV non non c) III d) IV e) All of these choices. 13) Which of the following would you expect to be aromatic? IV a) I b) II
Which carbon-carbon bond in the following compound would you expect to be shortest? I II III IV V
Which alkene would you expect to have the lowest heat of hydrogenation? III IV I II III IV Which pair does not represent a pair of resonance structures? and and and ШI IV and O I O II O III O IV All of these choices represent pairs of resonance structures.
Which product(s) would you expect to obtain from the following sequence of reactions? IV II I III V
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV E) V 31) Which of the following is an aromatic hydrocarbon? IV -CH A)I B C)ID)IVE) V 32) Which of the following conjugated dienes will not react with a dieneophile in a Diels-Alder reaction? Π. IV A) I B)11 C)111 D) IVE) I and III 33) The conjugate acid of the compound shown below is B) aromatic D) antiaromatic. E) none of the above....
Which compound is the least reactive in the aromatic electrophilic substitution reaction? What product would you expect from the following reaction? Answer both, please. 1. Which compound is the least reactive in the aromatic electrophilic substitution reaction? NH . B NH С. SOH Logo D. NO2 E 2. What product would you expect from the following reaction? CO.CH ÇO.CH А ÇOCH B OCH, D CO.CH E
please exlain why! Which of these is an aromatic molecule? 0=ả: < II III IV I O A. 11 OB.1 OC.IN O DV O E. III
a. Which of the following two nucleophilic aRomatic substitution Reactions would you expect to proceed at Faster Rate. Explain in detail the Reasoning which led нь урик (one/31e + NaOH ol + NaBr O 00+ 001 09 --> + & Na Bir ol + NaO A